This work focused on determining the fatty acid (FA) composition of commonly discarded fish Spanish Mediterranean coast in winter and summer to assess their potential use as raw sources very long-chain polyunsaturated acids (VLCPUFAs). Total n-3 VLCPUFA content significantly varies depending capture season, values were higher for Pomadasys incisus (1.36 g/100 g), Chelidonichthys lucerna (1.67 g...

Small seine net fish assemblages in the headwater region of the Kariega Estuary are described and compared to the catch composition in other parts of the system. The geographical headwaters of the freshwater ‘deprived’ Kariega Estuary were utilised by a range of fish species but, in contrast to the nearby freshwater ‘rich’ Great Fish Estuary, few important angling species (e.g. spotted grunter ...

In this paper we analyze the characteristics of an experimental otolith identification system based on image contours described with Elliptical Fourier Descriptors (EFD). Otoliths are found in the inner ear of fishes. They are formed by calcium carbonate crystals and organic materials of proteic origin. Fish otolith shape analysis can be used for sex, age, population and species identification ...

The species remains the basic unit of biological classification. However, since archaeofaunal analysis is time-consuming and costly (especially when fish are the dominant class), it is important to ask whether making species-level identifications is worthwhile in view of the fact that even anciently diverged species can be difficult to differentiate osteologically with fragmented material. This...

The sex ratio, gonadosomatic index, stages of gonadal development and fecundity of sompat grunt Pomadasys jubelini off Lagos coast, Nigeria were investigated. P. jubelini had sex ratio of 1: 0.85 (male to female). The difference in sex ratio was not significantly different (p > 0.05) from the expected 1:1 distribution. Gonadosomatic index ranged from 0.07 to 7.29% with mean of 2.25 ± 0.08%. Hig...